RU2666345C1 - Фемтосекундный ультрафиолетовый лазер - Google Patents
Фемтосекундный ультрафиолетовый лазер Download PDFInfo
- Publication number
- RU2666345C1 RU2666345C1 RU2017127103A RU2017127103A RU2666345C1 RU 2666345 C1 RU2666345 C1 RU 2666345C1 RU 2017127103 A RU2017127103 A RU 2017127103A RU 2017127103 A RU2017127103 A RU 2017127103A RU 2666345 C1 RU2666345 C1 RU 2666345C1
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- Prior art keywords
- laser pulse
- nonlinear optical
- optical crystal
- laser
- pulse
- Prior art date
Links
- 239000013078 crystal Substances 0.000 claims abstract description 111
- 230000003287 optical effect Effects 0.000 claims abstract description 100
- 238000000034 method Methods 0.000 claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- BRZHTGSJWOHHEQ-UHFFFAOYSA-N [Ge]=O.[Ba].[La] Chemical compound [Ge]=O.[Ba].[La] BRZHTGSJWOHHEQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 238000001228 spectrum Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 5
- 230000003595 spectral effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 230000002123 temporal effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- XBJJRSFLZVLCSE-UHFFFAOYSA-N barium(2+);diborate Chemical compound [Ba+2].[Ba+2].[Ba+2].[O-]B([O-])[O-].[O-]B([O-])[O-] XBJJRSFLZVLCSE-UHFFFAOYSA-N 0.000 description 2
- VCZFPTGOQQOZGI-UHFFFAOYSA-N lithium bis(oxoboranyloxy)borinate Chemical compound [Li+].[O-]B(OB=O)OB=O VCZFPTGOQQOZGI-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/355—Non-linear optics characterised by the materials used
- G02F1/3551—Crystals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/109—Frequency multiplication, e.g. harmonic generation
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
- G02F1/3534—Three-wave interaction, e.g. sum-difference frequency generation
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
- G02F1/3544—Particular phase matching techniques
- G02F1/3548—Quasi phase matching [QPM], e.g. using a periodic domain inverted structure
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/37—Non-linear optics for second-harmonic generation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/163—Solid materials characterised by a crystal matrix
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1688—Stoichiometric laser compounds, i.e. in which the active element forms one component of a stoichiometric formula rather than being merely a dopant
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
- G02F1/354—Third or higher harmonic generation
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/16—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 series; tandem
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/20—LiNbO3, LiTaO3
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2015/053272 WO2016131474A1 (en) | 2015-02-17 | 2015-02-17 | Femtosecond ultraviolet laser |
Publications (1)
Publication Number | Publication Date |
---|---|
RU2666345C1 true RU2666345C1 (ru) | 2018-09-10 |
Family
ID=52595294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2017127103A RU2666345C1 (ru) | 2015-02-17 | 2015-02-17 | Фемтосекундный ультрафиолетовый лазер |
Country Status (13)
Country | Link |
---|---|
US (1) | US9660412B2 (es) |
EP (2) | EP3259642B1 (es) |
JP (1) | JP6588557B2 (es) |
KR (2) | KR20170096191A (es) |
CN (2) | CN114122892A (es) |
AU (1) | AU2015383603B2 (es) |
BR (1) | BR112017017300A2 (es) |
CA (1) | CA2970059C (es) |
ES (2) | ES2938569T3 (es) |
MX (1) | MX2017009080A (es) |
RU (1) | RU2666345C1 (es) |
TW (1) | TWI594745B (es) |
WO (1) | WO2016131474A1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2809331C2 (ru) * | 2018-12-18 | 2023-12-11 | Айпиджи Фотоникс Корпорэйшн | ЛАЗЕР-ПРЕОБРАЗОВАТЕЛЬ БОЛЬШОЙ МОЩНОСТИ НА ОСНОВЕ СТРУКТУРИРОВАННОГО КРИСТАЛЛА SrB4O7 ИЛИ PbB4O7 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111741794B (zh) * | 2018-01-24 | 2023-07-28 | 新加坡国立大学 | 光动力疗法***及其发射器和可植入照明装置 |
US11719993B2 (en) * | 2018-12-18 | 2023-08-08 | Ipg Photonics Corporation | High power laser converter based on patterned SRB4B07 or PBB407 crystal |
CN109638624A (zh) * | 2019-01-24 | 2019-04-16 | 南京大学 | 一种基于超短脉冲激光的高效率且波长连续可调的极紫外光产生*** |
US11237455B2 (en) | 2020-06-12 | 2022-02-01 | Kla Corporation | Frequency conversion using stacked strontium tetraborate plates |
US20220399694A1 (en) * | 2021-06-11 | 2022-12-15 | Kla Corporation | Tunable duv laser assembly |
US11567391B1 (en) * | 2021-11-24 | 2023-01-31 | Kla Corporation | Frequency conversion using interdigitated nonlinear crystal gratings |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050007655A1 (en) * | 2000-12-22 | 2005-01-13 | Michael Scalora | Photonic signal frequency up and down-conversion using a photonic band gap structure |
EP1517173A1 (en) * | 2003-08-27 | 2005-03-23 | Mesophotonics Limited | A nonlinear optical device |
RU2338817C2 (ru) * | 2003-02-13 | 2008-11-20 | Джапан Сайнс Энд Текнолоджи Эдженси | Способ получения кристалла на основе бората и генератор лазерного излучения |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5984916A (en) * | 1993-04-20 | 1999-11-16 | Lai; Shui T. | Ophthalmic surgical laser and method |
JP3977529B2 (ja) * | 1998-11-18 | 2007-09-19 | 三菱電機株式会社 | 波長変換レーザ装置およびレーザ加工装置 |
JP3378530B2 (ja) * | 1999-05-19 | 2003-02-17 | 日本電信電話株式会社 | 光信号電界の時間波形測定方法及び装置 |
JP4660999B2 (ja) * | 2001-08-01 | 2011-03-30 | パナソニック株式会社 | 光導波路デバイス及びコヒーレント光源及び光学装置 |
JP2003075876A (ja) * | 2001-08-30 | 2003-03-12 | Nidek Co Ltd | 角膜手術装置 |
US7088749B2 (en) | 2003-01-06 | 2006-08-08 | Miyachi Unitek Corporation | Green welding laser |
WO2006072183A2 (en) * | 2005-01-10 | 2006-07-13 | Kresimir Franjic | LASER SYSTEM FOR GENERATION OF HIGH-POWER SUB-NANOSECOND PULSES WITH CONTROLLABLE WAVELENGTHS IN 2-15 um REGION |
US7570676B2 (en) * | 2006-05-09 | 2009-08-04 | Spectralus Corporation | Compact efficient and robust ultraviolet solid-state laser sources based on nonlinear frequency conversion in periodically poled materials |
CN101576711A (zh) * | 2008-12-31 | 2009-11-11 | 南开大学 | 利用飞秒激光在透明固体材料中制作光波导的装置及方法 |
CN101777725A (zh) * | 2009-01-14 | 2010-07-14 | 镭射谷科技(深圳)有限公司 | 二极管泵浦腔内三次谐波全固态紫外激光器 |
CN202014023U (zh) * | 2011-04-14 | 2011-10-19 | 朱建英 | 陶瓷激光器 |
JP2015165260A (ja) * | 2014-03-02 | 2015-09-17 | 株式会社オキサイド | 波長変換レーザ装置 |
CN104184026A (zh) * | 2014-08-01 | 2014-12-03 | 中国人民解放军63892部队 | 一种时域脉宽可调的飞秒激光器及方法 |
-
2015
- 2015-02-17 RU RU2017127103A patent/RU2666345C1/ru not_active IP Right Cessation
- 2015-02-17 JP JP2017540106A patent/JP6588557B2/ja active Active
- 2015-02-17 EP EP15706734.9A patent/EP3259642B1/en active Active
- 2015-02-17 KR KR1020177020253A patent/KR20170096191A/ko active Application Filing
- 2015-02-17 CA CA2970059A patent/CA2970059C/en active Active
- 2015-02-17 EP EP20202563.1A patent/EP3783428B1/en active Active
- 2015-02-17 ES ES20202563T patent/ES2938569T3/es active Active
- 2015-02-17 MX MX2017009080A patent/MX2017009080A/es unknown
- 2015-02-17 CN CN202111429788.4A patent/CN114122892A/zh active Pending
- 2015-02-17 ES ES15706734T patent/ES2836324T3/es active Active
- 2015-02-17 CN CN201580075929.3A patent/CN107210579A/zh active Pending
- 2015-02-17 WO PCT/EP2015/053272 patent/WO2016131474A1/en active Application Filing
- 2015-02-17 KR KR1020197022355A patent/KR20190091390A/ko active Application Filing
- 2015-02-17 AU AU2015383603A patent/AU2015383603B2/en active Active
- 2015-02-17 BR BR112017017300A patent/BR112017017300A2/pt not_active Application Discontinuation
-
2016
- 2016-01-27 US US15/008,326 patent/US9660412B2/en active Active
- 2016-02-01 TW TW105103122A patent/TWI594745B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050007655A1 (en) * | 2000-12-22 | 2005-01-13 | Michael Scalora | Photonic signal frequency up and down-conversion using a photonic band gap structure |
RU2338817C2 (ru) * | 2003-02-13 | 2008-11-20 | Джапан Сайнс Энд Текнолоджи Эдженси | Способ получения кристалла на основе бората и генератор лазерного излучения |
EP1517173A1 (en) * | 2003-08-27 | 2005-03-23 | Mesophotonics Limited | A nonlinear optical device |
Non-Patent Citations (1)
Title |
---|
O.A. Louchev и др. "Numerical study and optimization of third harmonics generation in two-sectioned periodically poled LiTaO3", Proceedings of SPIE, vol.7354, май 2009. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2809331C2 (ru) * | 2018-12-18 | 2023-12-11 | Айпиджи Фотоникс Корпорэйшн | ЛАЗЕР-ПРЕОБРАЗОВАТЕЛЬ БОЛЬШОЙ МОЩНОСТИ НА ОСНОВЕ СТРУКТУРИРОВАННОГО КРИСТАЛЛА SrB4O7 ИЛИ PbB4O7 |
Also Published As
Publication number | Publication date |
---|---|
CA2970059A1 (en) | 2016-08-25 |
EP3259642A1 (en) | 2017-12-27 |
TWI594745B (zh) | 2017-08-11 |
TW201630577A (zh) | 2016-09-01 |
EP3783428A1 (en) | 2021-02-24 |
AU2015383603A1 (en) | 2017-06-29 |
AU2015383603B2 (en) | 2018-10-25 |
JP6588557B2 (ja) | 2019-10-09 |
ES2836324T3 (es) | 2021-06-24 |
CN114122892A (zh) | 2022-03-01 |
EP3783428B1 (en) | 2022-12-21 |
JP2018503879A (ja) | 2018-02-08 |
BR112017017300A2 (pt) | 2018-04-10 |
CN107210579A (zh) | 2017-09-26 |
KR20190091390A (ko) | 2019-08-05 |
ES2938569T3 (es) | 2023-04-12 |
MX2017009080A (es) | 2017-11-23 |
CA2970059C (en) | 2019-07-09 |
KR20170096191A (ko) | 2017-08-23 |
US9660412B2 (en) | 2017-05-23 |
US20160240996A1 (en) | 2016-08-18 |
WO2016131474A1 (en) | 2016-08-25 |
EP3259642B1 (en) | 2020-10-21 |
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Effective date: 20200218 |